<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <link rel="stylesheet" href="./index.css">
  <title>虚态动画</title>
</head>
<body>
  <div class="loader">
    <div style="--i:0;"></div>
    <div style="--i:1;"></div>
    <div style="--i:2;"></div>
    <div style="--i:3;"></div>
    <div style="--i:4;"></div>
  </div>
</body>
</html>